General description Has your Numatic lost its suction? Maintain your vacuum's performance with the Filter-Flo dust bags designed for optimal cleanliness and convenience. The Filter-Flo 5-layer filtration dust bags have up to 50% longer usage life since the dust is absorbed into the fibers without blocking the pores, thus avoiding reduction in suction power. These dust bags filter the air 40% more efficiently than a normal paper bag and help you get rid of airborne particles such as allergens and some bacteria, making them ideal for people with allergies. Technical specifications Type: NVM-1CH Pack of 20 Material: Plastic Collar Compatibility and accessories Compatible with the following models: Numatic 202, AV250, AVQ250, BASIL, NB200, DAVID, DUST, EDWARD, EVR370, HENRY, HVR200, HVR200-22, HVR200A, MICRO HVR200M, HVR200M-22, PLUS HVR200P, TURBO HVR200T, TURBOCARE HVR204T, XTRA HVX200, HETTY, HET200-22, HET200A, HV200, HVC200, HVR200M-22, HVR200P, HVR204, HVR204P, HZQ200, HZQ200-2,